Railways NTPC (Technical Ability) Fabrication Process Question Bank

done Fabrication Process Total Questions - 63

• question_answer1)
  The edge of a steel plate cut by oxygen cutting will get hardened when the carbon content is:
  A)
  Less than 0.1 percent done clear
  B)
  Less than 0.3 percent done clear
  C)
  More than 0.3 percent done clear
  D)
  Anywhere between 0.1 to 1.0 percent done clear
  View Solution play_arrow

• question_answer2)
  Weld spatter occurs due to any of the following except:                                      
  A)
  High welding current done clear
  B)
  Too small an electrode done clear
  C)
  Are done clear
  D)
  Wrong polarity done clear
  View Solution play_arrow

• question_answer3)
  Thick steel plate cut with oxygen normally shows signs of cracking. This tendency for cracking can be minimized by:                                
  A)
  Slow speed cutting, done clear
  B)
  Cutting in two or more stages done clear
  C)
  Preheating the plate done clear
  D)
  Using oxy-acetylene flame done clear
  View Solution play_arrow

• question_answer4)
  Electron beam welding can be carried out in:
  A)
  Open air done clear
  B)
  A shielding gas environment done clear
  C)
  A pressurized inert gas chamber done clear
  D)
  Vacuum done clear
  View Solution play_arrow

• question_answer5)
  Which one of the following welding processes uses non-consumable electrodes?
  A)
  TIG welding done clear
  B)
  MIG welding done clear
  C)
  Manual arc welding done clear
  D)
  Submerged arc welding done clear
  View Solution play_arrow

• question_answer6)
  Match List-1 with List-11 and Select the correct answer using the codes given below the Lists:

  List-I (Filler)		List-II (Joining process)
  A.	Cu, Zn, Ag alloy	1.	Braze welding
  B.	Cu, Sn alloy	2.	Brazing
  C.	Pb, Sb alloy	3.	Soldering
  D.	Iron oxide and aluminium powder	4.	TIG welding of aluminium.

  Codes:
  A)
  A\[\to \]4, B\[\to \]1, C\[\to \]4, D\[\to \]2 done clear
  B)
  A\[\to \]1, B\[\to \]2, C\[\to \]4, D\[\to \]3 done clear
  C)
  A\[\to \]2, B\[\to \]1, C\[\to \]3, D\[\to \]4 done clear
  D)
  A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]1 done clear
  View Solution play_arrow

• question_answer7)
  Consider the following statements:

  MIG welding process uses

  1. Consumable electrode

  2. Non-consumable electrode

  3. D. C power supply

  4. A. C power supply.

  Of these statements:
  A)
  2 and 4 are correct          done clear
  B)
  2 and 3 are correct done clear
  C)
  1 and 4 are correct          done clear
  D)
  1 and 3 are correct done clear
  View Solution play_arrow

• question_answer8)
  In oxy-acetylene gas welding, for complete combustion, the volume of oxygen required per unit of acetylene is:
  A)
  1                                  done clear
  B)
  1.5 done clear
  C)
  2                                  done clear
  D)
  2.5 done clear
  View Solution play_arrow

• question_answer9)
  Small amount of carbonaceous material sprinkled on the inner surface of mould cavity is called:
  A)
  Backing sand                  done clear
  B)
  facing sand            done clear
  C)
  Green sand                    done clear
  D)
  dry sand   done clear
  View Solution play_arrow

• question_answer10)
             The voltage-current characteristics of a DC generator for arc welding is a straight line between an open-circuit voltage of 80 V and short-circuit current of 300 A. The generator settings for maximum arc power will be:                                        
  A)
  80 V and 150 A  done clear
  B)
  40 V and 300 A      done clear
  C)
  40 V and 150 V  done clear
  D)
  V and 300 A done clear
  View Solution play_arrow

• question_answer11)
           Which of the following joining processes are best suited for manufacturing pipes to carry gas products?                                    

  1. Rivetting

  2. Welding

  3. Bolts and nuts

  Select the correct answer using the codes given below:

  Codes:                                      
  A)
  1 and 2             done clear
  B)
  1 and 3            done clear
  C)
  2 alone              done clear
  D)
  1, 2 and 3 done clear
  View Solution play_arrow

• question_answer12)
            The correct sequence of the given materials ascending order of their weldability is:          
  A)
  MS, copper, cast iron, aluminium            done clear
  B)
  Cast iron, MS, aluminium copper          done clear
  C)
  Copper, cast iron, MS, aluminium          done clear
  D)
  Aluminium, copper, cast iron, MS  done clear
  View Solution play_arrow

• question_answer13)
         Which one of the following statements is correct?
  A)
  No flux is used in gas welding of mild steel  done clear
  B)
  Borax is the commonly used flux coating welding electrodes                      done clear
  C)
  Laser beam welding employs a vacuum chamber and thus avoids use of a shielding method  done clear
  D)
  AC can be used for GTAW process done clear
  View Solution play_arrow

• question_answer14)
         Consider the following processes            

  1. Gas welding

  2. Thermit welding

  3. Arc welding

  4. Resistance welding

  The correct sequence of these processes in increasing order of their welding temperatures is:       
  A)
  1, 3, 4, 2                       done clear
  B)
  1, 2, 3, 4       done clear
  C)
  4, 3, 1, 2                       done clear
  D)
  4, 1, 3, 2 done clear
  View Solution play_arrow

• question_answer15)
  Which of the following statements is/arc correct in respect of welding of two pieces in upset welding?

  1. The ends to be welded should touch each other before current is switched

  2. The ends to be welded should touch each other after current is switched on.

  3. The two pieces have to be pressed together after desired welding temperature is reached.

  Select the correct answer using the code given below:
  A)
  1 only               done clear
  B)
  1 and 3 done clear
  C)
  2 only               done clear
  D)
  2 and 1 done clear
  View Solution play_arrow

• question_answer16)
  Arc blow is more common in:                   
  A)
  a.c. welding done clear
  B)
  d.c. welding with straight polarity done clear
  C)
  d.c. welding with bare electrods done clear
  D)
  a.c. welding with bare electrodes. done clear
  View Solution play_arrow

• question_answer17)
  Pinch effect in welding is the result of:
  A)
  Expansion of gases in the arc done clear
  B)
  Electromagnetic forces done clear
  C)
  Electric force done clear
  D)
  Surface tension of the molten metal done clear
  View Solution play_arrow

• question_answer18)
  In manual arc welding, the equipment should have drooping characteristics in order to maintain the:
  A)
  Voltage constant when arc length changes done clear
  B)
  Current constant when arc length changes done clear
  C)
  Temperature in the arc constant done clear
  D)
  Weld pool red-hot done clear
  View Solution play_arrow

• question_answer19)
  In are welding D.C. reverse polarity is used to bear greater advantage in:
  A)
  Overhead welding done clear
  B)
  Flat welding of lap joints done clear
  C)
  Edge welding done clear
  D)
  Flat welding of butt joints done clear
  View Solution play_arrow

• question_answer20)
  Oxyacetylene reducing flame is used while carrying out the welding on:
  A)
  Mild Steel done clear
  B)
  High carbon steel done clear
  C)
  Grey cast iron                                    done clear
  D)
  Alloy steels done clear
  View Solution play_arrow

• question_answer21)
  Which one of the following welding techniques in vacuum environment required?
  A)
  Ultrasonic welding done clear
  B)
  Laser beam welding done clear
  C)
  Plasma arc welding                       done clear
  D)
  Electron beam welding done clear
  View Solution play_arrow

• question_answer22)
  Consider the following statements:

  1. in arc welding, 65% to 75% heat is generated the anode.

  2. Duty cycle in case of arc welding is the cycle of complete-welding of work piece from the beginning.

  3. Arc blow is more common with DC welding.

  Which of the statements given above are correct?
  A)
  1, 2 and 3                      done clear
  B)
  1 and 2 done clear
  C)
  2 and 3             done clear
  D)
  1 and 3    done clear
  View Solution play_arrow

• question_answer23)
  Hot cracks occur in the weld and fusion zone as die metal solidifies. Which of the following are the causes for hot cracks?

  1. Presence of sulphur and phosphorous for hot cracks.

  2. High carbon or alloy content of the base metal.

  3. Moisture in the joint or electrode.

  4. Joint restraint.

  Select the correct answer using the code given below:
  A)
  1, 2 and 4                      done clear
  B)
  1, 2 and 3 done clear
  C)
  3 and 4             done clear
  D)
  1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer24)
  In atomic hydrogen welding hydrogen acts as:
  A)
  A heating agent done clear
  B)
  One of the gases to generate the flame done clear
  C)
  An effective shielding gas protecting the weld done clear
  D)
  A lubricant to increase the flow characteristics of weld metal. done clear
  View Solution play_arrow

• question_answer25)
  Which of the following are the major characteristics of submerged arc welding?

  1. High welding speeds

  2. High deposition rates

  3. Low penetration

  4. Low cleanliness

  Select the correct answer using the code given below:
  A)
  2 and 3             done clear
  B)
  1, 2 and 3 done clear
  C)
  3 and 4             done clear
  D)
  1 and 2 done clear
  View Solution play_arrow

• question_answer26)
  Consider the following statements:

  1. In gas welding, the torch should be held at an angle of \[30{}^\circ \] to \[45{}^\circ \] from the horizontal plane

  2. In gas welding, the size of the torch depends upon the thickness of metal to be formed

  3. Drag in gas cutting is the time difference between heating of the plate and starting the oxygen gas for cutting.

  Which of the statements given above are correct?
  A)
  1, 2 and 3                      done clear
  B)
  1 and 2 done clear
  C)
  2 and 3             done clear
  D)
  1 and 3 done clear
  View Solution play_arrow

• question_answer27)
  In which of the following welding processes, flux is used in the form or granules?
  A)
  AC arc welding done clear
  B)
  Submerged arc welding done clear
  C)
  Argon arc welding done clear
  D)
  DC arc welding done clear
  View Solution play_arrow

• question_answer28)
  Which one of the following is not a fusion welding process?
  A)
  Gas welding                   done clear
  B)
  Arc welding done clear
  C)
  Brazing              done clear
  D)
  Resistance welding done clear
  View Solution play_arrow

• question_answer29)
  Fabrication weldability test is used to determine:
  A)
  Mechanical properties required for satisfactory performance of welded joint done clear
  B)
  Susceptibility of welded joint for cracking done clear
  C)
  Suitability for joint design done clear
  D)
  Appropriate machining process. done clear
  View Solution play_arrow

• question_answer30)
  Which one of the following welding processes consists of minimum heat effected zone (HAZ)?
  A)
  Shielded Metal Arc Welding (SWAW) done clear
  B)
  Laser Beam Welding (L3BW) done clear
  C)
  Ultrasonic Welding (USW) done clear
  D)
  Metal Inert Gas Welding MIG) done clear
  View Solution play_arrow

• question_answer31)
  Match List-I (Welding problems) with List-II (Causes) and select the correct answer using the codes given below the list:

  List-I (Welding problems)		List-II (Causes)
  A.	Spatter	1.	Damp electrodes
  B.	Distortion	2.	Arc blow
  C.	Porosity	3.	Improper cleaning in multipass welding
  D.	Poor joint selection	4.	Poor joint selection

  Codes:
  A)
  A\[\to \]4, B\[\to \]2, C\[\to \]3, D\[\to \]1 done clear
  B)
  A\[\to \]4, B\[\to \]2, C\[\to \]1, D\[\to \]3 done clear
  C)
  A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]3 done clear
  D)
  A\[\to \]2, B\[\to \]4, C\[\to \]3, D\[\to \]1 done clear
  View Solution play_arrow

• question_answer32)
  High speed electron beam of electron beam welding is focused on the weld spot using:
  A)
  Vacuum lens                  done clear
  B)
  inert gas lens done clear
  C)
  Optical lens                    done clear
  D)
  magnetic lens done clear
  View Solution play_arrow

• question_answer33)
  In resistance welding, heat is generated due to the resistance between:
  A)
  Electrode and work piece done clear
  B)
  Asperities between touching plates done clear
  C)
  Two dissimilar metals being in contact done clear
  D)
  Interatomic forces. done clear
  View Solution play_arrow

• question_answer34)
  Match List-I (Welding problems) with List-II (Causes) and select the correct answer using the codes given below the list:

  List-I		List-II
  A.	Cracking of weld	1.	Excessive metal stresses
  B.	Cracking of base	2.	High joint metal  rigidity
  C.	Porosity	3.	Oxidation
  D.	Inclusions	4.	Excessive \[{{H}_{2}},{{O}_{2}},{{N}_{2}}\] in the welding atmosphere

  Codes:
  A)
  A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 done clear
  B)
  A\[\to \]3, B\[\to \]4, C\[\to \]2, D\[\to \]1 done clear
  C)
  A\[\to \]2, B\[\to \]4, C\[\to \]2, D\[\to \]1 done clear
  D)
  A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]2 done clear
  View Solution play_arrow

• question_answer35)
  Consider the following statement:

  The magnitude of residual stresses in welding depends upon

  1. Design of welding

  2. Support and clamping of components

  3. Welding process used.

  Which of the statements given above are correct?
  A)
  1 and 2             done clear
  B)
  1, 2 and 3 done clear
  C)
  1 and 3             done clear
  D)
  2 and 3 done clear
  View Solution play_arrow

• question_answer36)
  Consider the following statements in respect of oxydiacetylene welding:

  1. The joint is not heated to a state of fusion.

  2. No pressure is used.

  3. Oxygen is stored in steel cylinder at a pressure of 14 MPa

  4. When there is an excess of acetylene used, there is decided change in the appearance of flame.

  Which of the statements given above are correct?
  A)
  1, 2 and 3                      done clear
  B)
  2, 3 and 4         done clear
  C)
  1, 3 and 4                      done clear
  D)
  1, 2 and 4      done clear
  View Solution play_arrow

• question_answer37)
      The coating material of an arc welding electrode contains which of the following?              

  1. Deoxidising agent,

  2. Arc stabilizing agent.

  3. Slag forming agent

  Select the correct answer using the code given below
  A)
  1, 2 and 3                      done clear
  B)
  1 and 2 only      done clear
  C)
  2 and 3 only                  done clear
  D)
  1 and 3 only done clear
  View Solution play_arrow

• question_answer38)
       In MIG welding, the metal is transferred into the form of which one of the following?                
  A)
  A fine spray of metal       done clear
  B)
  Molten drops                          done clear
  C)
  Weld pool                      done clear
  D)
  Molecules      done clear
  View Solution play_arrow

• question_answer39)
                        Consider the following statements in respect of the laser beam welding:                      

  1. It can be used for welding any metal or their combinations because of very high temperature of the focal points.

  2. Heat affected zone is very large because of quick heating.

  3. High vacuum is required to carry the process.

  Which of the statements given above is/are correct?
  A)
  1 and 2 only                  done clear
  B)
  2 and 3 only   done clear
  C)
  1 only               done clear
  D)
  1, 2 and 3 done clear
  View Solution play_arrow

• question_answer40)
       Which of the following effects are possible due to residual stresses in welding?              

  1. Reduce dimensional stability

  2. Weld cracking

  3. Effect on fatigue strength

  4. Reduction in the creep strength

  Select the correct answer using the code given below:
  A)
  1 and 2 only                  done clear
  B)
  2 and 3 only done clear
  C)
  1 and 3 only                  done clear
  D)
  1, 2, 3 and 4 done clear
  View Solution play_arrow

• question_answer41)
  Assuming a straight line V\[-\]I characteristics for a DC welding generator, short-circuit current as 400 A and open circuit voltage as 100 V, which one of the following is the correct voltage and current setting for maximum arc power?
  A)
  400 A and 100 V            done clear
  B)
  200 A and 100 V done clear
  C)
  400 A and 50 V  done clear
  D)
  200 A and 50 V done clear
  View Solution play_arrow

• question_answer42)
  Open-circuit voltage of 60V and current of 160 A were the welding conditions for arc welding of a certain class of steel strip of thickness 10 mm. For arc welding of 5 mm thick strip of the same steel, the welding voltage and current would be:
  A)
  60 V and 80 A   done clear
  B)
  120 V and 160 A done clear
  C)
  60V and 40 A    done clear
  D)
  120V and 40 A done clear
  View Solution play_arrow

• question_answer43)
  Match List-I (Shielding method) with List-II (Welding process) and select the correct answer using the codes given below the lists:   

  List-I		List-II
  A.	Flux coating	1.	Gas metal arc welding
  B.	Flux granules	2.	submerged arc welding
  C.	\[C{{O}_{2}}\]	3.	Shielded metal arc welding
  D.	Vacuum	4.	Laser beam welding
  		5.	Electron beam welding

  Codes:
  A)
  A\[\to \]1, B\[\to \]2, C\[\to \]5, D\[\to \]3 done clear
  B)
  A\[\to \]1, B\[\to \]4, C\[\to \]2, D\[\to \]5 done clear
  C)
  A\[\to \]3, B\[\to \]5, C\[\to \]1, D\[\to \]4 done clear
  D)
  A\[\to \]3, B\[\to \]2, C\[\to \]1, D\[\to \]5 done clear
  View Solution play_arrow

• question_answer44)
  Consider the following welding processes:

  1. TIG welding

  2. Submerged arc welding

  3. Electro-slag welding

  4. Thermit welding.

  Which of these welding processes are used for welding thick pieces of metals?
  A)
  1, 2 and 3                      done clear
  B)
  1, 2 and 4 done clear
  C)
  1, 3 and 4                      done clear
  D)
  2, 3 and 4 done clear
  View Solution play_arrow

• question_answer45)
  Match List-I (Welding processes) with List-II (Features) and select the correct answer using the codes given below the Lists:

  List-I		List-II
  A.	Ultrasonic welding	1.	Gas heated to ionized condition for conduction of electric current
  B.	Plasma arc welding	2.	High frequency and high intensity vibrations
  C.	Plasma arc welding	3.	Concentrated steam of high-energy Electrons
  		4.	Exothermal chemical reaction

  Codes:
  A)
  A\[\to \]1, B\[\to \]2, C\[\to \]4 done clear
  B)
  A\[\to \]4, B\[\to \]3, C\[\to \]1 done clear
  C)
  A\[\to \]2, B\[\to \]1, C\[\to \]4 done clear
  D)
  A\[\to \]2, B\[\to \]3, C\[\to \]1 done clear
  View Solution play_arrow

• question_answer46)
  Two plain carbon steel specimens having 0.8% carbon content are weld. If we observe the weldment under Metallurgical Microscope from centre towards either side, the following structures are observed at different zones:

  1. Fine Pearlite

  2. Coarse Pearlite

  3. Martensite

  Select the correct sequence using the codes given below:

  Codes:
  A)
  1, 2, 3   done clear
  B)
  1, 3, 2 done clear
  C)
  2, 1, 3               done clear
  D)
  3, 1, 2 done clear
  View Solution play_arrow

• question_answer47)
  Match List-I (Welding) with List-II (Application) and select the correct answer using the codes given below the Lists:

  List-I (Welding)		List-II (Application)
  A.	Explosive	1.	Joining thick sheets
  B.	Ultrasonic	2.	Manufacture of heat exchanges
  C.	Thermite	3.	Joining thin sheets or wires of similar/dissimilar metals
  D.	Projection	4.	Joining hydraulic piston rods heat for agricultural Machinery
  		5.	Joining rails, pipes and thick steel sections

  Codes:
  A)
  A\[\to \]2, B\[\to \]5, C\[\to \]1, D\[\to \]3 done clear
  B)
  A\[\to \]4, B\[\to \]5, C\[\to \]1, D\[\to \]3 done clear
  C)
  A\[\to \]2, B\[\to \]3, C\[\to \]5, D\[\to \]1 done clear
  D)
  A\[\to \]4, B\[\to \]3, C\[\to \]5, D\[\to \]1 done clear
  View Solution play_arrow

• question_answer48)
  Preheating before welding is done to:
  A)
  Make the steel softer done clear
  B)
  Bum away oil, grease, etc. from the plate surface done clear
  C)
  Prevent cold cracks done clear
  D)
  Prevent plate distortion done clear
  View Solution play_arrow

• question_answer49)
  Which one of the following is not an electric resistant method of welding?
  A)
  Electro slag welding done clear
  B)
  Percussion welding done clear
  C)
  Seam welding      done clear
  D)
  Flash welding done clear
  View Solution play_arrow

• question_answer50)
  Which one of the following welding processes consists of similar Heat Affected Zone (HAZ)?
  A)
  Arc welding done clear
  B)
  Electron beam welding done clear
  C)
  MIG welding done clear
  D)
  Thermite welding done clear
  View Solution play_arrow

• question_answer51)
  Which of the following gases can be used for GMAW as a shielding gas?

  1. Argon

  2. Oxygen

  3. Carbon dioxide

  Select the correct answer using the code given below:
  A)
  1, 2 and 3                      done clear
  B)
  1 and 2 done clear
  C)
  2 and 3             done clear
  D)
  1 and 3 done clear
  View Solution play_arrow

• question_answer52)
  In which one of the following welding techniques is vacuum environment required?
  A)
  Plasma arc welding done clear
  B)
  Laser beam welding done clear
  C)
  Electron beam welding done clear
  D)
  Ultrasonic welding done clear
  View Solution play_arrow

• question_answer53)
  Consider the following welding processes

  1. Arc welding

  2. MIG welding

  3. Laser beam welding

  4. Submerged arc welding

  Select the correct sequence in increasing order of Heat Affected Zone (HAZ) using the code given below:
  A)
  \[1-2-3-4\]                      done clear
  B)
  \[1-4-2-3\] done clear
  C)
  \[3-2-4-1\]                      done clear
  D)
  \[4-3-2-1\] done clear
  View Solution play_arrow

• question_answer54)
  Consider the following statements in respect of double sampling plan:

  1. Average number of pieces inspected is double that of single sampling.

  2. Average number of pieces inspected is less than that for single sampling

  3. Decision to accept or reject the lot is taken only after the inspection of both samples

  4. Decision to accept or reject the lot is reached sometime after one sample and sometimes after two samples.

  Which of the statements are correct?
  A)
  1, 2 and 3                      done clear
  B)
  2 and 4 done clear
  C)
  1 and 4             done clear
  D)
  2 and 3 done clear
  View Solution play_arrow

• question_answer55)
  Consider the following fits:

  1. I.C engine cylinder and piston

  2. Ball bearing outer race and housing

  3. Ball bearing inner race and shaft

  Which of the above fits are based on the shaft basis system?
  A)
  1 and 2             done clear
  B)
  2 and 3 done clear
  C)
  1 and 3             done clear
  D)
  1, 2 and 3 done clear
  View Solution play_arrow

• question_answer56)
  Match List I (Quality control concepts) with List II (Quality control techniques) and select the correct answer using the codes given below the lists:

  List-I (Quality control concepts)		List-II (Quality control techniques)
  A.	Tightened and reduced inspection	1.	Dodge roming tables
  B.	Lot tolerance percent defective	2.	Control chart for variables
  C.	Poisson distribution	3.	MIL standards
  D.	Normal distribution	4.	Control chart for number of non-conformities

  Codes:
  A)
  A\[\to \]2, B\[\to \]1, C\[\to \]4, D\[\to \]3 done clear
  B)
  A\[\to \]3, B\[\to \]4, C\[\to \]1, D\[\to \]2 done clear
  C)
  A\[\to \]3, B\[\to \]1, C\[\to \]4, D\[\to \]3 done clear
  D)
  A\[\to \]2, B\[\to \]4, C\[\to \]1, D\[\to \]2 done clear
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• question_answer57)
  Quality control chart for averages was maintained for a dimension of the product. After the control was established, it was found that the standard deviation of the process was 1.00 mm. The dimension of the part is \[70\text{ }\pm \text{ }2.5\] mm. Parts above 725 mm can be reworked but parts below 67.5 mm have to be scrapped. What should be the setting of the process to ensure production of no scrap and to minimize the rework?
  A)
  68.5 mm                       done clear
  B)
  70 mm done clear
  C)
  70.5 mm                       done clear
  D)
  725 mm done clear
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• question_answer58)
  Consider the following statements with respect to control charts for attributes:

  1. The lower control limit is non-negative

  2. Normal distribution is the order for this data

  3. The lower control limit is not significant

  4. These charts give the average quality characteristics

  Which of the statements given above are correct:
  A)
  1, 2 and 3                      done clear
  B)
  2, 3 and 4 done clear
  C)
  1, 3 and 4                      done clear
  D)
  1, 2 and 4 done clear
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• question_answer59)
             Which one of the following statements is not correct?                                    
  A)
  The operating characteristic curve of acceptance sampling plan shows the ability of the plan to distinguish between good and bad lots done clear
  B)
  No sampling plan can give complete protection against the acceptance of defective products done clear
  C)
  C chart has straight line limits and U chart has zig-zag limits                               done clear
  D)
  Double sampling result in more inspection than single sampling if the incoming quality is very bad done clear
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• question_answer60)
  Consider the following statements:            

  A nomenclature \[\phi \,50\,H8/p8\] denoted that

  1. Hole diameter is 50 mm

  2. It is a shaft base system

  3. 8 indicates fundamental deviation.

  Which of the statements given above is/are correct
  A)
  1, 2 and 3                      done clear
  B)
  1 and 2 only     done clear
  C)
  1 and 3 only                  done clear
  D)
  3 only done clear
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• question_answer61)
             Consider an activity having a duration time \[{{T}_{\text{ij}}}\] E it the earliest occurrence time and L latest occurrence time (see figure given)  

  Consider the following statements in this regard:

  1. Total float \[V\text{ }=\text{ }60\text{ }V,\]

  2. Free float \[={{E}_{j}}-{{E}_{i}}{{t}_{ij}}\]

  3. Slack of the tail event \[={{L}_{j}}-{{E}_{i}}\]

  Of these statements:
  A)
  1, 2 and 3 are correct done clear
  B)
  1 and 2 are correct done clear
  C)
  1 and 3 are correct done clear
  D)
  2 and 3 are correct done clear
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• question_answer62)
  For the network shown in the given Fig. earliest expected completion time of the project is?
  A)
  26 days             done clear
  B)
  27 days done clear
  C)
  30 days             done clear
  D)
  indeterminable done clear
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• question_answer63)
  In the network shown below in figure, the critical path is along
  A)
  \[1-2-3-4-8-9\] done clear
  B)
  \[1-2-3-5-6-7-8-9\] done clear
  C)
  \[1-2-3-4-7-8-9\] done clear
  D)
  \[1-2-5-6-7-8-9\] done clear
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